src/Pure/Isar/isar_cmd.ML
author wenzelm
Tue, 06 Nov 2001 01:15:08 +0100
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(*  Title:      Pure/Isar/isar_cmd.ML
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    ID:         $Id$
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    Author:     Markus Wenzel, TU Muenchen
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    License:    GPL (GNU GENERAL PUBLIC LICENSE)
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Non-logical toplevel commands.
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*)
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signature ISAR_CMD =
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sig
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  val welcome: Toplevel.transition -> Toplevel.transition
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  val init_toplevel: Toplevel.transition -> Toplevel.transition
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  val exit: Toplevel.transition -> Toplevel.transition
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  val quit: Toplevel.transition -> Toplevel.transition
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  val touch_child_thys: string -> Toplevel.transition -> Toplevel.transition
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  val touch_all_thys: Toplevel.transition -> Toplevel.transition
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  val touch_thy: string -> Toplevel.transition -> Toplevel.transition
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  val remove_thy: string -> Toplevel.transition -> Toplevel.transition
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  val kill_thy: string -> Toplevel.transition -> Toplevel.transition
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  val pr: string list * (int option * int option) -> Toplevel.transition -> Toplevel.transition
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  val disable_pr: Toplevel.transition -> Toplevel.transition
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  val enable_pr: Toplevel.transition -> Toplevel.transition
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  val cannot_undo: string -> Toplevel.transition -> Toplevel.transition
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  val clear_undos_theory: int -> Toplevel.transition -> Toplevel.transition
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  val redo: Toplevel.transition -> Toplevel.transition
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  val undos_proof: int -> Toplevel.transition -> Toplevel.transition
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  val kill_proof_notify: (unit -> unit) -> Toplevel.transition -> Toplevel.transition
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  val kill_proof: Toplevel.transition -> Toplevel.transition
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  val undo_theory: Toplevel.transition -> Toplevel.transition
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  val undo: Toplevel.transition -> Toplevel.transition
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  val kill: Toplevel.transition -> Toplevel.transition
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  val back: bool * Comment.text -> Toplevel.transition -> Toplevel.transition
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  val use: string * Comment.text -> Toplevel.transition -> Toplevel.transition
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  val use_mltext_theory: string * Comment.text -> Toplevel.transition -> Toplevel.transition
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  val use_mltext: bool -> string * Comment.text -> Toplevel.transition -> Toplevel.transition
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  val use_setup: string * Comment.text -> theory -> theory
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  val use_commit: Toplevel.transition -> Toplevel.transition
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  val cd: string -> Toplevel.transition -> Toplevel.transition
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  val pwd: Toplevel.transition -> Toplevel.transition
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  val use_thy: string -> Toplevel.transition -> Toplevel.transition
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  val use_thy_only: string -> Toplevel.transition -> Toplevel.transition
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  val update_thy: string -> Toplevel.transition -> Toplevel.transition
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  val update_thy_only: string -> Toplevel.transition -> Toplevel.transition
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  val pretty_setmargin: int -> Toplevel.transition -> Toplevel.transition
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  val print_context: Toplevel.transition -> Toplevel.transition
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  val print_theory: Toplevel.transition -> Toplevel.transition
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  val print_syntax: Toplevel.transition -> Toplevel.transition
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  val print_theorems: Toplevel.transition -> Toplevel.transition
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  val print_locales: Toplevel.transition -> Toplevel.transition
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  val print_locale: xstring -> Toplevel.transition -> Toplevel.transition
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  val print_attributes: Toplevel.transition -> Toplevel.transition
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  val print_induct_rules: Toplevel.transition -> Toplevel.transition
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  val print_trans_rules: Toplevel.transition -> Toplevel.transition
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  val print_methods: Toplevel.transition -> Toplevel.transition
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  val print_antiquotations: Toplevel.transition -> Toplevel.transition
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  val print_thms_containing: string list -> Toplevel.transition -> Toplevel.transition
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  val thm_deps: (string * Args.src list) list -> Toplevel.transition -> Toplevel.transition
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  val print_binds: Toplevel.transition -> Toplevel.transition
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  val print_lthms: Toplevel.transition -> Toplevel.transition
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  val print_cases: Toplevel.transition -> Toplevel.transition
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  val print_thms: (string list * (string * Args.src list) list) * Comment.text
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    -> Toplevel.transition -> Toplevel.transition
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  val print_prfs: bool -> (string list * (string * Args.src list) list) * Comment.text
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    -> Toplevel.transition -> Toplevel.transition
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  val print_prop: (string list * string) * Comment.text
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    -> Toplevel.transition -> Toplevel.transition
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  val print_term: (string list * string) * Comment.text
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    -> Toplevel.transition -> Toplevel.transition
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  val print_type: (string list * string) * Comment.text
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    -> Toplevel.transition -> Toplevel.transition
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end;
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structure IsarCmd: ISAR_CMD =
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struct
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(* variations on init / exit *)
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val init_toplevel = Toplevel.imperative (fn () => raise Toplevel.RESTART);
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val welcome = Toplevel.imperative (writeln o Session.welcome);
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val exit = Toplevel.keep (fn state =>
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  (Context.set_context (try Toplevel.theory_of state);
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    writeln "Leaving the Isar loop.  Invoke 'loop();' to restart.";
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    raise Toplevel.TERMINATE));
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val quit = Toplevel.imperative quit;
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(* touch theories *)
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fun touch_child_thys name = Toplevel.imperative (fn () => ThyInfo.touch_child_thys name);
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val touch_all_thys = Toplevel.imperative ThyInfo.touch_all_thys;
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fun touch_thy name = Toplevel.imperative (fn () => ThyInfo.touch_thy name);
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fun remove_thy name = Toplevel.imperative (fn () => ThyInfo.remove_thy name);
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fun kill_thy name = Toplevel.imperative (fn () => IsarThy.kill_theory name);
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(* print state *)
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fun with_modes modes e =
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  Library.setmp print_mode (modes @ ! print_mode) e ();
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fun set_limit _ None = ()
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  | set_limit r (Some n) = r := n;
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fun pr (ms, (lim1, lim2)) = Toplevel.keep (fn state =>
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  (set_limit goals_limit lim1; set_limit ProofContext.prems_limit lim2; Toplevel.quiet := false;
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    with_modes ms (fn () => Toplevel.print_state true state)));
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val disable_pr = Toplevel.imperative (fn () => Toplevel.quiet := true);
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val enable_pr = Toplevel.imperative (fn () => Toplevel.quiet := false);
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(* history commands *)
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fun cannot_undo txt = Toplevel.imperative (fn () => error ("Cannot undo " ^ quote txt));
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val clear_undos_theory = Toplevel.history o History.clear;
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val redo = Toplevel.history History.redo o Toplevel.proof ProofHistory.redo;
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fun undos_proof n = Toplevel.proof (fn prf =>
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  if ProofHistory.is_initial prf then raise Toplevel.UNDEF else funpow n ProofHistory.undo prf);
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fun kill_proof_notify (f: unit -> unit) = Toplevel.history (fn hist =>
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  (case History.current hist of
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    Toplevel.Theory _ => raise Toplevel.UNDEF
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  | Toplevel.Proof _ => (f (); History.undo hist)));
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val kill_proof = kill_proof_notify (K ());
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val undo_theory = Toplevel.history (fn hist =>
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  if History.is_initial hist then raise Toplevel.UNDEF else History.undo hist);
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val undo = Toplevel.kill o undo_theory o undos_proof 1;
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val kill = Toplevel.kill o kill_proof;
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val back = Toplevel.proof o ProofHistory.back o Comment.ignore;
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(* use ML text *)
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fun use (name, comment_ignore) = Toplevel.keep (fn state =>
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  Context.setmp (try Toplevel.theory_of state) ThyInfo.use name);
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(*passes changes of theory context*)
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val use_mltext_theory = Toplevel.theory' o Context.use_mltext_theory o Comment.ignore;
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(*ignore result theory context*)
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fun use_mltext v (txt, comment_ignore) = Toplevel.keep' (fn verb => fn state =>
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  (Context.use_mltext txt (v andalso verb) (try Toplevel.theory_of state)));
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val use_setup = Context.use_setup o Comment.ignore;
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(*Note: commit is dynamically bound*)
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val use_commit = use_mltext false ("commit();", Comment.none);
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(* current working directory *)
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fun cd dir = Toplevel.imperative (fn () => (File.cd (Path.unpack dir)));
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val pwd = Toplevel.imperative (fn () => writeln (Path.pack (File.pwd ())));
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(* load theory files *)
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fun use_thy name = Toplevel.imperative (fn () => Context.save ThyInfo.use_thy name);
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fun use_thy_only name = Toplevel.imperative (fn () => Context.save ThyInfo.use_thy_only name);
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fun update_thy name = Toplevel.imperative (fn () => Context.save ThyInfo.update_thy name);
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fun update_thy_only name =
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  Toplevel.imperative (fn () => Context.save ThyInfo.update_thy_only name);
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(* pretty_setmargin *)
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fun pretty_setmargin n = Toplevel.imperative (fn () => Pretty.setmargin n);
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(* print parts of theory and proof context *)
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val print_context = Toplevel.keep Toplevel.print_state_context;
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val print_theory = Toplevel.unknown_theory o
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  Toplevel.keep (PureThy.print_theory o Toplevel.theory_of);
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val print_syntax = Toplevel.unknown_theory o
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  Toplevel.keep (Display.print_syntax o Toplevel.theory_of);
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val print_theorems = Toplevel.unknown_theory o
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  Toplevel.keep (PureThy.print_theorems o Toplevel.theory_of);
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val print_locales = Toplevel.unknown_theory o
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  Toplevel.keep (Locale.print_locales o Toplevel.theory_of);
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fun print_locale name = Toplevel.unknown_theory o
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  Toplevel.keep (fn state => Locale.print_locale (Toplevel.theory_of state) name);
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val print_attributes = Toplevel.unknown_theory o
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  Toplevel.keep (Attrib.print_attributes o Toplevel.theory_of);
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val print_induct_rules = Toplevel.unknown_context o
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  Toplevel.keep (Toplevel.node_case InductAttrib.print_global_rules
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    (InductAttrib.print_local_rules o Proof.context_of));
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val print_trans_rules = Toplevel.unknown_context o
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  Toplevel.keep (Toplevel.node_case Calculation.print_global_rules
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    (Calculation.print_local_rules o Proof.context_of));
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val print_methods = Toplevel.unknown_theory o
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  Toplevel.keep (Method.print_methods o Toplevel.theory_of);
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val print_antiquotations = Toplevel.imperative IsarOutput.print_antiquotations;
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fun print_thms_containing ss = Toplevel.unknown_theory o Toplevel.keep (fn state =>
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  ThmDatabase.print_thms_containing (Toplevel.theory_of state)
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    (map (ProofContext.read_term (Toplevel.context_of state)) ss));
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fun thm_deps args = Toplevel.unknown_theory o Toplevel.keep (fn state =>
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  ThmDeps.thm_deps (IsarThy.get_thmss args (Toplevel.enter_forward_proof state)));
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(* print proof context contents *)
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val print_binds = Toplevel.unknown_proof o Toplevel.keep (fn state =>
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  ProofContext.setmp_verbose
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    ProofContext.print_binds (Proof.context_of (Toplevel.proof_of state)));
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val print_lthms = Toplevel.unknown_proof o Toplevel.keep (fn state =>
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  ProofContext.setmp_verbose
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    ProofContext.print_lthms (Proof.context_of (Toplevel.proof_of state)));
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val print_cases = Toplevel.unknown_proof o Toplevel.keep (fn state =>
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  ProofContext.setmp_verbose
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    ProofContext.print_cases (Proof.context_of (Toplevel.proof_of state)));
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(* print theorems / types / terms / props *)
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fun string_of_thms state ms args = with_modes ms (fn () =>
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  Pretty.string_of (ProofContext.pretty_thms (Proof.context_of state)
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    (IsarThy.get_thmss args state)));
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fun string_of_prfs full state ms args = with_modes ms (fn () =>
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  Pretty.string_of (Pretty.chunks    (* FIXME context syntax!? *)
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    (map (ProofSyntax.pretty_proof_of full) (IsarThy.get_thmss args state))));
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fun string_of_prop state ms s =
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  let
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    val ctxt = Proof.context_of state;
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    val prop = ProofContext.read_prop ctxt s;
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  in
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    with_modes ms (fn () => Pretty.string_of (Pretty.quote (ProofContext.pretty_term ctxt prop)))
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  end;
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fun string_of_term state ms s =
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  let
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    val ctxt = Proof.context_of state;
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    val t = ProofContext.read_term ctxt s;
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    val T = Term.type_of t;
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  in
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    with_modes ms (fn () => Pretty.string_of
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      (Pretty.block [Pretty.quote (ProofContext.pretty_term ctxt t), Pretty.fbrk,
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        Pretty.str "::", Pretty.brk 1, Pretty.quote (ProofContext.pretty_typ ctxt T)]))
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  end;
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fun string_of_type state ms s =
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  let
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    val ctxt = Proof.context_of state;
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    val T = ProofContext.read_typ ctxt s;
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  in with_modes ms (fn () => Pretty.string_of (Pretty.quote (ProofContext.pretty_typ ctxt T))) end;
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fun print_item string_of (x, y) = Toplevel.keep (fn state =>
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  writeln (string_of (Toplevel.enter_forward_proof state) x y));
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val print_thms = print_item string_of_thms o Comment.ignore;
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fun print_prfs full = print_item (string_of_prfs full) o Comment.ignore;
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val print_prop = print_item string_of_prop o Comment.ignore;
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val print_term = print_item string_of_term o Comment.ignore;
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val print_type = print_item string_of_type o Comment.ignore;
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end;